<script setup lang="ts">
import { computed, reactive, Ref, ref } from 'vue'
import useCategoryStore from '@/store/modules/category'
import { RouterLink } from 'vue-router'
import { findBrand } from '@/service/api/home'
const store = useCategoryStore()
//获得menuList
const brand = reactive({
  id: 'brand',
  name: '品牌',
  children: [
    {
      id: 'brand-chilren',
      name: '品牌推荐',
      children: null,
      goods: null,
      picture: ''
    }
  ],
  goods: null,
  picture: ''
})
const menuList = computed(() => {
  const list = store.topCategoryList.map((item) => {
    return {
      ...item,
      children: item.children?.slice(0, 2)
    }
  })
  list.push(brand)
  return list
})

//获得当前鼠标经过的goodsList
let currentCategoryId: Ref<null | string> = ref(null)
const currentCategory = computed(() =>
  menuList.value.find((item) => item.id === currentCategoryId.value)
)

// 获得品牌数据
const getBrandData = async () => {
  const response = await findBrand(6)
  brand.goods = response.result as any
}
getBrandData()
</script>
<template>
  <div class="home-category">
    <ul class="menu">
      <li
        v-for="item in menuList"
        :key="item.id"
        @mouseenter="currentCategoryId = item.id"
      >
        <RouterLink :to="`/category/${item.id}`">{{ item.name }}</RouterLink>
        <template v-if="item.children?.length">
          <RouterLink
            :to="`/category/sub/${childItem.id}`"
            v-for="childItem in item.children"
            >{{ childItem.name }}</RouterLink
          >
        </template>
        <span v-else>
          <Skeleton
            width="60px"
            height="18px"
            style="margin-right: 5px"
            bg="rgba(255,255,255,0.2)"
          />
          <Skeleton width="50px" height="18px" bg="rgba(255,255,255,0.2)" />
        </span>
      </li>
    </ul>
    <!-- 弹层 -->
    <div class="layer">
      <h4 v-if="currentCategory">
        {{ currentCategory.id === 'brand' ? '品牌' : '分类' }}推荐
        <small>根据您的购买或浏览记录推荐</small>
      </h4>
      <ul>
        <template v-if="currentCategory && currentCategory.goods?.length">
          <li v-for="item in currentCategory.goods" :key="item.id">
            <RouterLink to="/">
              <img :src="item.picture" alt="" />
              <div class="info">
                <p class="name ellipsis-2">{{ item.name }}</p>
                <p class="desc ellipsis">{{ item.desc }}</p>
                <p class="price"><i>¥</i>{{ item.price }}</p>
              </div>
            </RouterLink>
          </li>
        </template>
      </ul>
    </div>
  </div>
</template>

<style lang="less" scoped>
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      &:hover {
        background: @themeColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
  .layer {
    width: 990px;
    height: 500px;
    background: rgba(255, 255, 255, 0.8);
    position: absolute;
    left: 250px;
    top: 0;
    display: none;
    padding: 0 15px;
    h4 {
      font-size: 20px;
      font-weight: normal;
      line-height: 80px;
      small {
        font-size: 16px;
        color: #666;
      }
    }
    ul {
      display: flex;
      flex-wrap: wrap;
      li {
        width: 310px;
        height: 120px;
        margin-right: 15px;
        margin-bottom: 15px;
        border: 1px solid #eee;
        border-radius: 4px;
        background: #fff;
        &:nth-child(3n) {
          margin-right: 0;
        }
        a {
          display: flex;
          width: 100%;
          height: 100%;
          align-items: center;
          padding: 10px;
          &:hover {
            background: #e3f9f4;
          }
          img {
            width: 95px;
            height: 95px;
          }
          .info {
            padding-left: 10px;
            line-height: 24px;
            width: 190px;
            .name {
              font-size: 16px;
              color: #666;
            }
            .desc {
              color: #999;
            }
            .price {
              font-size: 22px;
              color: @priceColor;
              i {
                font-size: 16px;
              }
            }
          }
        }
      }
    }
  }
  &:hover {
    .layer {
      display: block;
    }
  }
  li.brand {
    height: 180px;
    a {
      align-items: flex-start;
      img {
        width: 120px;
        height: 160px;
      }
      .info {
        p {
          margin-top: 8px;
        }
        .place {
          color: #999;
        }
      }
    }
  }
}
</style>
